A man of slim figure, slightly stooped, five feet eight inches in height, weighing only a hundred and thirty-five pounds, and of a modesty of mien and gentleness of manner which seemed to fit him more for the court than for the camp. His eyes were dark-gray, and were the most expressive of his features. His hair and beard were of a chestnut-brown color. His voice was exceedingly musical, and one of the clearest in sound and most distinct in utterance that I have ever heard…He was civil to all who came in contact wiith him, and never attempted to snub any one, or treat anybody with less consideration on account of his inferiority in rank.Horace Porter, chief of ordnance for the Army of the Cumberland, later a member of Grant’s staff. (Cited in Waugh, p. 67)